A lawsuit to protect the snail darter from the Tellico Dam in Tennessee offered the first real test of the 1973 Endangered ...

The bird, thought to be the only one of its kind in the Western Hemisphere, is presumed to be Stella, an out-of-place raptor ...

By many, they're considered the rarest ecotype of orca ... Known for eating sharks and larger fish, these rarely seen orcas spend most of their time in the deep ocean and have an extensive ...

Humpback whale populations have been increasing throughout many of their ranges since a final moratorium on commercial ...

There may not be a better way to embrace winter in Wisconsin than to attend the Lake Superior Ice Festival, where a bunch of ...

"I'm very optimistic about what we can do when we work together to solve a problem that we mutually share." Researchers ...

The underwater giants can grow up to 10 feet (3 meters) long and weigh up to 300 kilograms (661 pounds), or as heavy as a grand piano. They now are only found in Southeast Asia's Mekong River but ...

Deep Waters is home to some of the rarest fish species, with the most common being the one in 2,500 Eel. Owing to their rarities, they fetch a handsome sum at the trader’s, making it a great ...

This photograph shows what could be the only hope for one of Australia’s rarest fish – captive breeding. Tasmania’s marine environments have become increasingly polluted and infested with ...

Biologists blamed the rapid decline of snow crab on a 2018 climate-fueled heatwave. Some fishermen are still reeling as they face a murky future.

Six critically endangered Mekong giant catfish — one of the largest and rarest freshwater fish in the world — were caught and released recently in Cambodia, reviving hopes for the survival of ...

HANOI — Six critically endangered Mekong giant catfish — one of the largest and rarest freshwater fish in the world — were caught and released recently in Cambodia, reviving hopes for the ...